QoS Map Definition

For hardware, each interface has eight queues, numbered from 0 through 7. Queue 0 is reserved for low-latency queuing (LLQ), so any class that is mapped to queue 0 must be configured to use LLQ. The default scheduling method for all is weighted round-robin (WRR).

For Cisco vEdge devices, each interface has eight queues, numbered from 0 through 7. Queue 0 is reserved for control traffic and low-latency queuing (LLQ) traffic, and queues 1, 2, 3, 4, 5, 6 and 7 are available for data traffic. The scheduling method for all eight queues is WRR. LLQ is not supported. When QoS is not configured for data traffic, queue 2 is the default queue.

Diagram

Classes

definitions (sdwan.localized_policies)

Name	Type	Constraint	Mandatory	Default Value
qos_maps	List	[qos_maps]	No

qos_maps (sdwan.localized_policies.definitions)

Name	Type	Constraint	Mandatory	Default Value
name	String	Regex: ^[A-Za-z0-9-_]{1,128}$	Yes
description	String		Yes
qos_schedulers	List	[qos_schedulers]	Yes

qos_schedulers (sdwan.localized_policies.definitions.qos_maps)

Name	Type	Constraint	Mandatory	Default Value
queue	Integer	min: 0, max: 7	Yes
bandwidth_percent	Integer	min: 1, max: 100	Yes
buffer_percent	Integer	min: 1, max: 100	Yes
burst_bytes	Integer	min: 5000, max: 10000000	No
scheduling_type	Choice	llq, wrr	Yes
drop_type	Choice	tail-drop, red-drop	Yes
class_map	String	Regex: ^[A-Za-z0-9-_]{1,128}$	Yes

Examples

Example-1: Following example configures QoS policy consisting of LLQ for control and voice class and WRR for interactive video class, transactional data and default class. It limits priority traffic to 20 percent and assigns 20% of bandwidth to video, 30% to transactional data and 30% to remaining data.

sdwan:
  localized_policies:
    definitions:
      qos_maps:
        - name: QOS-MAP-1P3Q
          description: "1-prio 3-red queue qos-map"
          qos_schedulers:
            - queue: 0
              bandwidth_percent: 20
              buffer_percent: 20
              burst_bytes: 200000
              scheduling_type: llq
              drop_type: tail-drop
              class_map: CLASS-REALTIME
            - queue: 1
              bandwidth_percent: 30
              buffer_percent: 30
              scheduling_type: wrr
              drop_type: red-drop
              class_map: CLASS-TRANSACTIONAL
            - queue: 2
              bandwidth_percent: 30
              buffer_percent: 30
              scheduling_type: wrr
              drop_type: red-drop
              class_map: DEFAULT
            - queue: 4
              bandwidth_percent: 20
              buffer_percent: 20
              scheduling_type: wrr
              drop_type: red-drop
              class_map: CLASS-VIDEO